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AMERESCO4 <br />Green . Clean . Sustainable <br />Measurement and Verification — The M&V approach for the Install Solar PV ECM is based on IPMVP <br />Option A. This includes utilizing the solar PV data collection system to track equipment performance data <br />and visually inspecting the system during the performance period. <br />Note: Updated kW output solar data for the year eight performance period was not available. However, <br />the reporting application is active and is recording kWh generation. The maximum daily system output <br />analysis below is from the year six performance period, and it has been included here for reference. In <br />years one through six, Ameresco verified system performance using maximum kW output data. <br />The chart below shows the daily maximum PV system output (kW) plotted over time. As expected, the <br />system output is highest during the spring and summer months when full sun at solar noon is most <br />likely. The nominal power of the system is 20 kW AC, and this value is still being achieved, confirming <br />that the output capability of the system matches modeled expectations. Some short periods of time in <br />the winter months can be seen with minimal system output, which is likely due to snow covering the <br />array. The PVsyst model accounts for snow and dust covering the array by including an array soiling loss <br />factor in the simulation. <br />Daily Maximum PV System Power Output (kW) <br />25 <br />20 <br />15 <br />10 <br />s <br />0 <br />41 <br />ye �a <br />The screenshot on the following page shows the homepage of the active data tracking platform. This <br />image was taken on October 15th, 2024, and it shows the instantaneous power and energy generated to <br />date. <br />October 15th, 2024 <br />Page 21 <br />